* String type = toolchain.getType(); // Get the type of the toolchain
 * String version = toolchain.getVersion(); // Get the version of the toolchain
 * </pre>
 *
 *
 * @since 4.0.0
 * @see JavaToolchain
 * @see org.apache.maven.api.services.ToolchainManager
 */
@Experimental
public interface Toolchain {
    /**
     * Gets the type of toolchain.
     *
     * @return the toolchain type

import org.apache.maven.api.annotations.Nonnull;

/**
 *
 * @since 4.0.0
 */
@Experimental
public interface LocalRepositoryManager extends Service {

    /**
     * Gets the relative path for a locally installed artifact.
     * Note that the artifact need not actually exist yet at
     * the returned location, the path merely indicates where
     * the artifact would eventually be stored.
     *

 * deleted without prior notice.
 *
 */
public interface ClassRealmManager {

    /**
     * Gets the class realm hosting the Maven core.
     *
     * @return The class realm hosting the Maven core, never {@code null}.
     */
    ClassRealm getCoreRealm();

    /**
     * Gets the class realm exposing the Maven API. This is basically a restricted view on the Maven core realm.
     *

     */
    enum Version {
        // based on ModeBuildingResult.validationLevel
        BASE,
        V20,
        V30,
        V31,
        V40,
        V41
    }

    /**
     * Gets the identifier of the model from which the problem originated. The identifier is derived from the
     * information that is available at the point the problem occurs and as such merely serves as best effort

        this.columnNumber = columnNumber;
    }

    /**
     * Gets the one-based index of the line containing the error.
     *
     * @return The one-based index of the line containing the error or a non-positive value if unknown.
     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *

        return path.toString();
    }

    /**
     * Gets the file of this source.
     *
     * @return The underlying file, never {@code null}.
     * @deprecated Use {@link #getPath()} instead.
     */
    @Deprecated
    public File getFile() {
        return path.toFile();
    }

    /**
     * Gets the file of this source.
     *
     * @return The underlying file, never {@code null}.

     */
    RepositoryRequest setForceUpdate(boolean forceUpdate);

    /**
     * Gets the local repository to use.
     *
     * @return The local repository to use or {@code null} if not set.
     */
    ArtifactRepository getLocalRepository();

    /**
     * Sets the local repository to use.
     *
     * @param localRepository The local repository to use.

    /**
     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**

        this.columnNumber = columnNumber;
    }

    /**
     * Gets the one-based index of the line containing the error.
     *
     * @return The one-based index of the line containing the error or a non-positive value if unknown.
     */
    public int getLineNumber() {
        return lineNumber;
    }

    /**
     * Gets the one-based index of the column containing the error.
     *

		},
		{
			// Gets compacted...
			path:   "bucket/dir1",
			size:   1302010,
			objs:   5,
			oSizes: sizeHistogram{0: 1, 1: 1, 2: 2, 4: 1},
		},
		{
			// Gets compacted at this level...
			path:   "bucket/dirwithalot/0",
			size:   filesBelowT,
			objs:   filesBelowT,
			oSizes: sizeHistogram{0: filesBelowT},
		},
		{
			// Gets compacted at this level (below obj threshold)...